Pumping apparatus



4 June 9, 1925.

1,541,112 G. A. BuvlNG'ER PUMPNG APPARAmUs Filed April so; 192s PatentedJune 9, 1925.

UNITED STATES 1,541,112 PATENT OFFICE.

GEORGE A. BUVINGER, 0F DAYTON, OHIO, ASSIGNOR' "lO DELCO-LIGHT COMPANY,0F

DAYTON, OHIO', A CORPORATION OF DELAWARE.

PUMPING APPARATUS.

T0 all lwhom z't may concern Be it known that I, GEORGE A. BUVINGER, acitizen of the United States of America, residing at Dayton, county ofMontgomery, land State of Ohio, have invented certain new and usefulImprovements in -,Pumping Apparatus, of which the following is a full,clear, andf exact description.

This invention relates to Water supply systems and particularly to thekind of system wherein a power driven pump is automatically started andstopped by a device responsive to pressure in the system.

It is amonor the objects of the present invention to o tain fresh waterfromV the source of supply Whenever desired, while providing also forstoring water in a stor age tank.

In order to attain these aims, the disclosed. embodiment of the presentinvention provides a water system having a fresh Water line forsupplying fresh water directly from the well, and means for automaticallcausing the operation of the pumping mec ianism as soon as there is ademand for fresh water and for automatically causing said pumpingmechanism to cease operation substantially as soon as the demand forfresh water ceases. The system includes other means which automaticallycontrols the pumping mechanism for supplying water to the storage tank.

Further objects and advantages of the present invention will be apparentfrom the following description, reference being had to the accompanyingdrawing, -wherein a preferred embodiment of one form of the invention isclearly disclosed.

In thedrawings:

Fig. 1 is a dia a water system inc tion.

Fig. 2 is a sectional view of a check valve employed in the presentsystem.

A pump driving mechanism 20, driven by an electric motor 21 mounteddirectly thereon, is supported on a suitable foundation 22 and isconnected with a pump located in the well casing 23 which includes adischarge head 24 located below the surface of the earth. Head 24 isconnected with-pressure`- ammatic view showing l'storage tank 50 by pipe25, elbow 26, pipe' 27, check valve 28pipe 29, T 30. pipe 31, elbow 32,pipe 33, check valve `6.0 and pipe 35. Pressure-storage tank 50 1sproudingr the present inven-4 vided With an outlet' 51, water gauge 52and iair pressurel gauge 53. A pressure controller switch 55, adapted toclosel circuit at about '25 pounds andy to open circuit at about 50pounds per square inch, `is connected with tank 50 by pressure pipe 56and with a lsuitable source of current and motor 21 by Wires 57 and 58respectively.

A pipe 36, secured to T 30, connects with pipe 37 through T 38, theupper end of plpe 37,being closed by a cap 39. A fresh Water faucet 40has connection with the T 38 through pipe 41, T 42 and pipe 43. Pressurecontrolled switch 45, adjusted to close circuit at about 5 pounds, andto open circuit at about 15 pounds per square inch, is connected with T42 through pipe- 44, and` is connected with wiresv 57 and 58^by wiresagainst the valve seat by a coil spring 67 which is held in place by ascrew 68 whichpasses through lthe spring and through the valve 66 and isscrewed into the bridge 65.

Check valve- 28 is similar to check valve 60, with the exception thatvalve 28 is not provided with a notch as indicated by 64.

M ode of operation.

To operate the water system, current is supplied from the currentsource. Assuming there is no pressure within the system, the switches 45and 55 will operate to close the circuit connections between the sourceof current and the motor 21 thereby operating it to drive the pump.Water is drawn up through the pipe 23 to the discharge head 24 fromwhence it is forced through pipe 25, elbow 26, pipe 27, check valve 28,pipe 29, T 30, pipe 31, elbow 32, pipe 33, check valve 60, pipe 35 intotank 50. A part of thiswater will rise in pipe 36 and through theconnections leading to the fresh water faucet 40 and also into the pipe37 until the pressure of the air in pipe 37 has reached 15 pounds, thusforming an air spring therevin and causing the circuit connectionsthrough'the switch 45 to be broken. As the pumplng continues and the airpressure between the level of the water and the top of the tank reaches50 pounds, the switch will operate to break the circuit connectionsleading to the motor 21, thus causing the pumpingoperation to cease.

Because pipe 37 is relatively small, when water is drawn from the faucet40, the pressure within pipe 37 will decrease rapidly to a pressure ofabout 5 pounds. Then the switch 45" will operate to make circuit to themotor 21, thereby causing the motor 21 to operate the pump driver 20.lVater will then be drawn up through casing 23, through discharge head24, pipe 25, elbow 26, pipe 27, check valve 28, pipe 29, T 30, pipe 36,T 3,8, pipe 43, T 42 and pipe 4l to the faucet, thus furnishing freshwater direct from the Well. Water in excess of what is used at thefaucet 40 will be pumped into theta-nk 50. As soon as the demand forfresh water ceases, the pressure will be almost 'instantly built up toabout 15 pounds in thefresh water line because of the small size of pipe37. Therefore the pumping will cease almost as soon as the demand forfresh water ceases.

Very little water is stored in the fresh water line and pressure pipe37, hence fresh water will be supplied in a very short time after afaucet 40 is opened. The check valve prevents any appreciable amount ofstale water flowing from the tank 50 to the fresh water line.

In the event water is withdrawn from the tank 50 through the outlet 51for other purposes and the pressure therein is reduced to 25 pounds, theswitch 55 will operate to conneet the source of current and the motor21, thereby causing the motor to operate the pump drive 20 to pump waterdirect to the tank 50. When the pressure again reaches 50 pounds withinthe tank 50, the operation of the pump 20 and motor 21 will bediscontinued through the automatic operation of the switch 55.

Should the faucet not be entirely closed off, and permitted to drip, itwill be appreciated that the pressure within the pipe 37 will graduallydecrease until such point as the motor 21 will be caused to operatethrough the action of pressure switch 45, thus causing useless pumpingto take place. This useless pumping becomes an important factor,especially where the system is operated from :a nstorage battery such asthat commonly used inv connection with .isolated house lighting systemsof the present day type, tending toward rapid depletion of the batteryand requiring more frequent recharging thereof. 'To overcome thisdiiiculty, the check valve 60 is employed, wherein is provided the notch64, through which water may drip. slowlyr from the tank 50 through pipe35', pipe'33, elbow'32, pipe 31, T 30, pipe 36, T 38 into pipe 37. Thisdrip.- ping will graduall. tend to rebuild the pressure within-the pipe37 or compensate for the loss in pressure occasioned by the dripping ofthe faucet. 40, so' that unnecessary pumping to furnish water io thefresh water line will be avoided.v

It will be noted that stored water and fresh water can be obtained fromthe system at the same time, without the stored water being delivered tothe fresh water faucet. The demand for I either kind of water will notinterfere with the demand for the other kind, and the satisfying of onedemand will not cause the pump to cease operation in case the otherdemand is not Satisfied. For example, if the pressure in tank 50 shouldfall below 25 pounds and the pump has started to operate, the openingand closing of the fresh water faucet will not cause the pump to ceaseoperation until the pressure in the tank reaches 5() pounds per squareinch. If the 50 pound pressure should be reached and fresh water shouldberdemanded at the same time, the pump will not cease operation untilthe fresh water demand is supplied.

The pressure values 5 to 15 pounds, and 25 to 50 pounds are to be takenas examples and not as limiting the practice of the invention to anyparticular pressure values. The switch 45 preferably operates at lowerpressures than switch 55.

Vhile the form of mechanism herein shown and described constitutes apreferred embodiment of one form of invention, it is to be understoodthat other forms might be adopted and various changes and alterationsmade in the shape, size, and proportion of the elements therein withoutdeparting from the spirit and scope of the invention.

What is claimed is as follows:

1. In a water system, the combin ition with a pump; of power means fordriving the pump; a storage tank connected with the pump; a fresh waterpipe connected to the pump between the tank and pump; means for causingthe pump driving mechanism to operate when the pressure in the storagetank falls below a certain amount and to cease operation after arelatively large volume of water hasbeen pumped'into the storage tank;and other means for causing the pump driving mechanism to operate-substantiallyas soon as there is demand fr water'from said freshwater pipe and for causing said mechanism tol ceaseoperation-substantially as soon as the demand vfor water ceasesregardless of the pressure in the storage tank. f

2. In a Water system, the combination with a pump; of power means fordriving the pump; a relatively large pressure storlim lll

age tank connected with thepump; a relatively small pressure storagetank connected to the pump between the storage tank and pump andprovided with' a water outlet;

means for automatically causing the pump driving mechanism to ceaseoperation after a relatively large volume of water has been pumped intothe storage tank; and other automatic means for' causing the pumpdriving mechanism to operate, substantially as soon as there is demandfor water from said smaller tank and for causing said mechanism to ceaseoperation substantially as soon as the demand for water ceases, saidlast means being operative regardless of the pressure in the largestorage tank.

3. In a water system, the combination with a pump; of an electric motorfor driving .the pump; a relatively large pressure storage tankconnected with the pump; a relatively small pressure storage tankconnected to the pump between the storage tank and pump and providedwith a water outlet; an automatic switch for causing the motor tooperate when the pressure in the storage tank falls below a certainamount and to cease operation after' a relatively large volume of waterhas been pumped `into the storage tank; and another automatic switcharranged in parallel with said irst switch for causing the pump drivingmechanism to operate substantially as soon as there is demand for waterfrom said smaller tank and for causing said mechanism to cease operationsubstantially as soon as the demand for water ceases.

4. In a water system, the combination with a pump; of power means fordriving the pump; a relatively large pressure storage tank connectedwith the pump; a relatively small pressure storage tank connected to thepump between the storage tank and pump and provided with a water outlet;means for automatically causing the pump driving mechanism to ceaseoperation when a predetermined high pressure exists within the storagetank; and other means for automatically causing the pump drivingmechanism to operate and cease operation when predetermined low and highpressure values exist respectively within the smaller tank, said lastmeans being operative regardless ot the pressure in said high pressurestorage tank. A

In a water system, the combination with a pump; of power means ford'riving the pump; a storage tank connected with the pump; a fresh waterpipe having a faucet in the storage tan colinectedlto the pump betweenthe tank and pump; means for' causing the pump driving mechanism to ocrate when the pressure fallsV below a certain amount and to ceaseoperation after a relatively large volumeof water has been pumped intothe Stora e tank; other means for 'causin the pump riving mechanism to`operate su stantlally as soon as there is demand for water from saidfresh water outlet pipe and for causing said mechanism to ceaseoperation substantially as soon as the demand for water ceasesregardless of -the pressure in said storage tank; and means forpermitting a limited amount of water to iow from ysaid storage tank intosaid water outlet pipe to compensate for losses in pressure thereincaused by a drip at said faucet.

6. In a water system, the combination with a pump; of power means fordriving the pump; a storage tank connected with the pump and adapted toreceive water from said pump and store said water under pressure; afresh water pipeconnected to the pump between the tank and pump; andmeans for rendering the pump driving mechanism inoperative when thepressure in said tank attains a certain value and for causing the pumpdriving mechanism to operate substantially as soon as there is a demandfor water from said fresh water pipe and for causing said mechanism tocease operation substantially as soon as the demand for water in saidpipe ceases lregardless of the pressure in the storage tank.

7. In a water system, the combination with a pump; of power means fordriving the pump; a storage tank connected with the pump and adapted toreceive water fromA said pump and store said water under pressure; afresh water pipe connected to the pump between the tank and pump; andmeans for causing the 'pump driving mechanism to operate substantiallyas soon as there is a. demand for water from said .fresh water pipe andfor causing said mechanism to cease operation as soon as the demand forwater ceases, .said means being res onsivc to the pressure in said freshwater pipe and operative regardless of the pressure in the stor'a tank.

Inl testimony whereof I hereto affix my signature.

GEORGE A.' BUVINGER.. Witnesses:

. MILDRED PEARE lS WARREN ScrrMmmNG.

